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  1. By: Guldberg, G. A. (Gustav Adolph),
    Publication info: 1886 [1887]
    Holding Institution: Natural History Museum Library, London
  2. By: Guldberg, G. A. (Gustav Adolph),
    Publication info: Bergen, Grieg, 1894
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  1. By: Guldberg, G. A. (Gustav Adolph),
    Type: Article
    In: Zoologische Jahrbücher.
    Volume: 2
    Date: 1887
    Page Range: 127--174
    Publication Info: Jena (Germany : G. Fischer, 1886-87.
  2. By: Guldberg, G. A. (Gustav Adolph),
    Type: Article
    In: Zoologische Jahrbücher
    Volume: 7
    Date: 1894
    Page Range: 1--22
    Publication Info: Jena [Germany], G. Fischer,